forster



(No Model.)

P. E. FORSTER.

NURSING BOTTLE. No. 335,347. PatentedFeb. 2, 1886.

N. PE'IERS. PholuLilhagmphur. Washinginn. D. C,

UNITED STATES PATENT OFFICE.

FERDINAND E. FORSTER, OF NEV YORK, N. Y.

NURSING-BOTTLE.

Application filed July 20, 1885.

PECIEICATION forming part of Letters Patent No. 335,347, dated February 2, 1886.

Serial No. 172,141. (No model.)

To aZZ whom it may concern.-

Be it known that I, FERDINAND E. FORSTER, of New York city, in the county and State of New York, have invented a certain new and useful Improvement relating to Nursing-Bottlcs, of which the following is a specification.

The object is to provide means for just sufficiently restraining the movement of the milk, which shall be simple and cheap, and capable of being thoroughly cleaned with little trouble or delay.

I employ a ball of glass or other suitable material having a grooved or roughened exterior. I introduce this in the soft tube of vulcanized india-rubber or analogous material, which is applied on the mouth of the bottle, and connects with the nozzle in the ordinary way. The ball should be of such size that the contractile force of the soft tube causes it to hug closely around the ball, leaving only small spaces between its roughened surfaces and the rubber. These spaces should be sufficient to allow the proper slow passage of the milk. The ball is introduced previous to applying the tube uponthe neck of the bottle. It preferably remains near that end of the tube. The tube is removed from the bottle for filling. The ball may be then easily squeezed out. Its construction makes it eminently easy to wash the tube, and the bottle being also washed by any ordinary or suitable means.

The parts may be kept separate or together until the next use.

The apparatus is simple and of small cost. It requires only a moderate degree of skill for its successful operation.

The accompanying drawing forms a part of this specification, and is a longitudinal section representing what I consider the best means of carrying out the invention as equipped with the ordinary cork and connections.

Referring to the drawing, and to the letters of reference marked thereon, A is the mouth of a bottle, and B an ordinary cork fitted therein.

0 is a glass tube inserted tightly in the cork, and connected by a short length of rubber tube, D, with an extension of glass, E, which latter drops by gravity into the lowest position in the bottle.

G is a rubber tube, which may be of the form and proportions usually employed for this purpose. Additional marks, as G G", will be used when necessary to indicate certain portions. One end, G, is adapted to serve as the nipple or mouth piece. The other end, G", is adapted to be sprung 011 the bottle-neck A.

H is a ball or sphere of solid glass, having its periphery grooved with shallow grooves h, crossing each other in various directions. These grooves should be plentiful, and so arranged that they allow a proper flow of the milk past the ball. no matter in what position the ball chances to lie.

The device is used in the ordinary manner. It restrains the flow of the milk, and even if the bottle is full and lies at a level above the babys mouth the milk cannot come too rap idly. It insures the proper slowness in the supply of nutriment under all ordinary or extraordinary conditions. To clean it the tube is pulled away from the bottle and the ball squeezed out and all the parts washed.

My invention, by retarding the flow of the milk past the ball, allows the mouthpiece to be made with any sized orifice which may be preferred. The small orifices commonly used to retard the flow at the month are objectionable for various reasons. I propose to make the mouth-orifice large.

Modifications may be made in the details without departing from the principle or sacrificing the advantages of the invention. I11- stead of grooves h, the surface of the ball may be studded with sufficient spurs. It is only important that a moderate space be insured for the flow of milk between the ball and the rubber and that the surfaces be presented so as to be easily cleaned when the parts are sep arated.

My invention can be used with the cork B, as shown, without the tubes 0 D E. It can be used even without the cork B. In such case the ball may be forced into the tube Gto a less extent than here shown, and may rest against the mouth of the bottle, the grooves or roughnesses insuring that a sufficient space be left for the moderate flow required.

The ball H may be egg-shaped, pear-shaped, or variously modified in form, so long as it is of sufficient size to fill the tube and so formed In testimony whereof I have hereunto set IO as to present only the limited spaces required my hand, at New York city, this 17th day of for the passage of the milk and to expose July, 1885, in the presence of two subscribing them for easy cleaning when required. Witnesses.

I claim as my invention- The grooved or roughened ball H h, in combination with a nursing-bottle,arranged Within the exit-tube thereof, substantiallyasherein specified.

FERDINAND E. FORSTER.

Witnesses:

H. A. J OHNSTONE, MANIENE ELLISON. 

